$defineModels not working as expected

[adroslice]

Describe the bug

After discovering this as an alternative for the deprecated Vue3 Reactivity Transforms, I had a read through the docs and saw this really cool defineModel macro, which could vastly simplify passing around some reactive state.
However, the version mentioned here does not allow me to use the resulting variable as a v-model in the template, because there it only counts as a non-writable prop, resulting in the following error:
"[plugin:vite:vue] v-model cannot be used on a prop, because local prop bindings are not writable.
Use a v-bind binding combined with a v-on listener that emits update:x event instead."
This is less of a bug and more a natural result of how the feature is implemented, however the way it limits its use is certainly unintended. I invite further discussion in the matter and apologize if my issue has been poorly expressed, since it has been a while since I've used Vue at all.

Btw, the output of envinfo seems to be wrong - Firefox (110.0) is my main browser after all.

Reproduction

https://github.com/adroslice/vue-macros-definemodel-repro/tree/main/client

System Info

System:
    OS: Windows 10 10.0.19044
    CPU: (8) x64 Intel(R) Core(TM) i7-6820HK CPU @ 2.70GHz
    Memory: 16.08 GB / 31.96 GB
  Binaries:
    Node: 18.6.0 - ~\AppData\Local\pnpm\node.EXE
    npm: 8.13.2 - ~\AppData\Local\pnpm\npm.CMD
  Browsers:
    Edge: Spartan (44.19041.1266.0), Chromium (110.0.1587.57)
    Internet Explorer: 11.0.19041.1566

Used Package Manager

pnpm

Validations

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• Read the Contributing Guide.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• The provided reproduction is a minimal reproducible of the bug.

[sxzz]

$defineModel is very limited now, you can try defineModel.

[sxzz]

According to docs

Assignment expression is only supported in <script setup> block. In other words invalid in <template>.

v-model is a syntax sugar of assigning value, so not supported now.